Abstract
IT is a remarkable sign of the progress of theoretical and experimental knowledge in a single branch of physics that a volume of nearly 500 closely printed pages should be required to give an account of modern optical pyrometry. In an interesting preface, M. Charles Fabry points out that the production of high temperatures in industrial and laboratory operations outstripped for a long period the methods of measuring such temperatures. For example, the gas thermometer, theoretically the simplest form, failed because no reservoir could be found which would retain its shape and remain absolutely impervious to gas at extremely high temperatures. The problem of measuring these temperatures was only effectively solved when the use of a material thermometer was abandoned and attention was concentrated on the radiation emitted by the body the temperature of which was to be found.
Traité de pyrométrie optique.
Par Prof. Gustave Ribaud. (Encyclopédie photométrique, Cinquième section, Mesures sur l'émission, Tome 4.) Pp. xvi + 485. (Paris: Editions de la Revue d'Optique théorique et instrumentale, 1931.) 95 francs.
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A., H. Traité de pyrométrie optique . Nature 131, 151 (1933). https://doi.org/10.1038/131151a0
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DOI: https://doi.org/10.1038/131151a0